package gateway.filter;

import lombok.extern.slf4j.Slf4j;
import org.springframework.cloud.gateway.filter.GatewayFilterChain;
import org.springframework.cloud.gateway.filter.GlobalFilter;
import org.springframework.core.Ordered;
import org.springframework.http.HttpStatus;
import org.springframework.stereotype.Component;
import org.springframework.web.server.ServerWebExchange;
import reactor.core.publisher.Mono;

/**
 * @Author:RenPu
 * @Date: 2020/7/1 17:40
 * @Version: 1.0
 * @description: 自定义全局过滤器用于拦截非法客户
 */

@Component
@Slf4j
public class MyselfGoalFilter implements GlobalFilter, Ordered {



    @Override
    public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) {

        String name = exchange.getRequest().getQueryParams().getFirst( "username" );

        if (name==null){

            log.info( "********用户名为空，非法用户o(╥﹏╥)o" );
            exchange.getResponse().setStatusCode( HttpStatus.NOT_ACCEPTABLE);
            return exchange.getResponse().setComplete();
        }

        return chain.filter(exchange);

    }



    @Override
    public int getOrder() {
        return 0;
    }
}
